My aunt set up the same router for 3 computers and she could barely work a fork and knife.🙂 It's a very nice router. Others in its class are the SMC 7004 which comes with a print server and the Linksys 4 port model (something like the BEFSR...).
If you read through the manual, setting the router up should be a breeze. Also, unless you plan on running some kind of server off of your network, you won't have to play around with the Firewall settings.